docs: update CORS trouble shooting tips (#1075)

Author: robrap

docs/troubleshoot_general_tips.rst

@@ -211,8 +211,6 @@ Missing tables/migrations/fields
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 Another error you may get if the code and the image are out of sync is sql or Django ORM errors about missing tables or models not having a certain field. To fix this, make sure you have the latest images and latest code, similar to the steps for Missing Module. Once you have updated the image and code, run ``make dev.migrate.lms`` (or your other service) from devstack to apply the latest migrations. You shouldn't need to restart the webserver or container.
 
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 .. _Understanding Git Conceptually: https://www.sbf5.com/~cduan/technical/git/
 
 Demo course is empty in studio
@@ -228,6 +226,7 @@ If you see "Access to XMLHttpRequest at 'http://localhost:18000/login_refresh' f
 The fix is to get a new auth session. You can do any of the following:
 
 1. Before navigating to your MFE, go to http://localhost:18000 to restart your logged in http session.
-2. Log out and then back in.
-3. Clear your cookies, then log back in.
-
+2. Clear your cookies
+3. Refresh http://localhost:18000
+4. Log in
+5. Navigate back to the MFE